Apparatus for gas analysis.



PATENTBD NOV. 13, 1906.

- E. SGHATZ.

APPARATUS PORGAS ANALYSIS.

APPLICATION FILED DEO. 2,'1905.

2 SHEETS-SHEET 1.

f. ,LLC

o. 835,559. PATENTED NOV. 13, 1906. E. SCHATZ.

APPARATUS FOR GAS ANALYSIS.

APLIoATIoN FILED DEO. 2. 1905. Y

z' SHEETS-SHEET 2,

-centimeterswis thus shut in the chsnib Application nled December 2,

To all w/wm, it may concern.-

Be it known that l, Eine Soiiii'rz, a subk ject of the German Emperor, nd residentot Danneckerstrasse 3Q, Franktort-on-the- Main, Germany, have invented certain new and useful Improvements iu Apparatus for Use in Analyzing Gas, of which the lioiloiving is a specification.

This invention has reterence to improve ments in apparatus `lin-'use in analyzing .and more particularly in that class ol apparatus in which the analysis is carried out in the known manner by ascertaining what pro portion of a measured volume of gas 'is taken up in passing through an absorbing lluid In my improved apparatus the gas is not, as heretofore, forced into Ythe measuringchambcr, 'but is sucked or drawn thereinto' by means of a suitnble pump, so that in 'lilling that chamber there is no compression oi gas, and, further, the proportion of' the gas absorbed is very easily and exactly ascertained by means of'simple devices Without having to regulate the absorbing luid, as is necessary in the known appffn'atus of kind.

My invention is illustrated in the accompanying drawings, in Whit-fir Figure I shows the completo apparatus iliagraniinatically, and Fi c and 23 show variations in the construi vion and arrangement ol one part of said appara-wis. l

Referring to the drawings, b is the. meas-I tiring-chamber, into which the gas is sucked through the pipe av by a suitable pump of' usual construction, said chamber aving no connection with the atmosphere. This s cking' in of the gas into the nieasuring-chain r is preferable toforeing it in, as', in the lirst place, it obviates any compression of the and, secondly, the pumps generally used for this purpose act quicker suction. than as force pumps. y

The measuringwhamber i; mounted in a tank d, into which water run `rlowly ironia reservoir c through a pipe j', llfhen the Water rises in the tank d to the semicireular Water seals g and enters the chamber l, the gas-inlet@ and the pipe lmy are nniltaneously sealed at the level lz,- and an exact predeten mined volume of. gas-say one hund red c As the water rises 'fartherit iforces this through the pipe'i into the sibsorptionwhamH ber lc, the arrangement being such that the gas is discharged from the pipe i at the bot- Specication of Letters Patenti ernten T lil-Melli, GERMANY.

Patented Nov. 13, 1906.

1905. semina 289.963.

toin or" said chamber near one end, so that it n'iust bubble up through the absorbing fluid contained therein. into the small space between the surface of said fluid and the roof the absorbing-chamber, to pass thence over the suriace of the absorbing fluid along the Whole length ofthe chamber, and in so doing is partly absorbed.' From said space over 'the absorbing lluid, which is as small as pos sible, the gas passes up into a bell l, suspended in a tank containing a liquid which is not easily evaporated and does not thicken. The. bell is perfectly balanced, so that as the gas enters the bell is raised-by the upward pressure, and a scale fn, marked on the bell, enables the percentage of gas that has been absorbed to be readily-read oil` when the measured volume has passed through the absorbing-chairmen The Water forces somev air free from carbonio acid into the ipe m toward the absorbing-chamber, .and tlie volunie oi this must of course be considered in marking the scale on the bell.

in order that the movements of the bell shall not elect the level of the liquid, the bell is connected with a cylinder q or the like, the cresseection of which corresponds to that ol the part ofthe bell immersed in the liquid in such a manner that said cylinder q sinks in the liquid as the bell rises. The bell being pertetrv balanced isvery easily raised by 'th K .and there is no lcompression of the gas under it.v

.in order that the gas shall remain a sufl'iciently long time in the absorbing-chamber, I connect a second Water-tank s With? the tank d' 'by means of a pipe r, situf-ted below the level marked e, and the bends of the respective :Siphon-pipes e and z2, which empty said taime s anu d, so that the Water is only drawn oil iroin the tank d after the tank s has been lille/Qi therefrom and the Water has then risen up to the mark z.

in rising in the' tank s the Water raises a lloat t, which acts on a one-arm lever u and lifts it up, thus releasing the lever e of a registering fiviee, so that the forked end w of said 'e is lowered upon. a sto on the bell-rod p, and at the same time t e volume of gas absorbed is registered-,by the length of line tirer-,rn on a slowly-rotating indicatorlieder fg; by a pencil carried by said lever.

T'hun the siphon z2 is emptying, the tank d the level of the water falls below the IOO niark i, the tube m is unsealed, and the gas pipe, thus allowing the bell Z to return te its original position.

if the apparatus is to be used tor testing Ytor oxygen, the tube m must be led into the measuring-chamber, as shown in dotted lines7 so as to prevent oxygen from the atmosphere entering.

ln the variation shown in `Fig. 2 the absorbing-chamber lc is entirely tilled with the absorbing liquid and the pipe i is led under the bell-mouth of a tube o, which leads up into the bell and through the liquid in which the gas bubbles up into the bell. In this case thc tube in is connected to the tube 0 voutside. of the absorbing-chamber.

The variation shown in Fig. 3 dill'ers from that inst described onlf,vv in that the tube 0 Winds up through the absorbing-ehamber, so that the gas bubbling up through theliquid has farther to travel and is theretiiire better subjected to the action of said liquid.

Having now full;V described my said invention, what l claim, and desire to secure by Letters Patent, is"

l. ln a device ol' the character described, a measuring chamber, an absorption chamber, connections between the measuringchamber and the absorption-cliamber, a balanced bell, a tube connection between the bell 'and the absorption-ehamber, said tube extending Within the chamber and having its end. Within the chamber bell-shaped.

2. ln a device of the character described, a measuring-chamber, an al)sorption-chamber, connections between the meassuring-chamber and the absorption-cliamber, a balanced bell, a tube connection between the bell and the absorption-chaudier, said ltube ,extending within the chamber and having its end within the chamber bell-shaped, the connection between the al)sorption-chamber andthe measuring-chamber discharging Within the tubo.

$5. ln a device of the character described, a

l l l l l i i i i 1 l l l l l measuring chamber7 an absorption chamber, connections between the measuringchamber and the absorption-chamber, a balanced bell, a tube connection between the bell and the absorption-chamber, said tube extending Within the chamber and having its end Within the chamber bell-shaped, the portion of the tube Within thelabsorption-cban ber being tortuous.

4. In a device of the character described, a tank, means tor supplying lluid to the tank, a second tank in communication with the lirstnamed tank and receiving its supply therefrom, a nieasuring-chamber in the first named tank, an absorption-chamber, a connection bctn'een the absorption-chamber and the measuring-ehamber, an indicating means in conmiunieation with the absorptionchamlmr, a registering device, and means controlled b v the. rise of iluid within the second'nanied tank for permitting the operation oi tbe registering device.

ln a device ot the character described, a

tank, a ineasuring-cliamber therein, means for supplying gas to the measuring-chamber, means for supplying [luid to the tank, said measuring-chamber being provided with openings to permit tho entrance ot the Huid therein, an absorption-chamber, a connection between the absorption-cliamber and the. 1neasuriiig-chamber through 'which the gas is forced by the rise of the 'l'luid Within the measuring-chamber, a connection between the absorptionmhaniber and the tank to permit the escape of gas Within the al'isorptionchamber upon the fall ot the fluid tank, and means for emptying the vl'luid.

in testimony whereof l have hereunto set my hand in'presenoe of tufo witnrsses.

EMIL SCl'l'T'a.

llVitnesses:

JEAN Gauner, CARL GRUND.

Within the 

